Ambient Air - doe-hdbk-1188-20060010

DOE-HDBK-1188-2006

22.

AMBIENT AIR. The general air in the area of interest (e.g., the general room atmosphere), as

distinct from a specific stream or volume of air that may have different properties. [Reference

Unknown]

23.

ANALYSIS. The use of methods and techniques of arranging data to: (a) assist in determining

what additional data are required; (b) establish consistency, validity, and logic; (c) establish

necessary and sufficient events for causes; and (d) guide and support inferences and

judgements. [DOE G 225.1A-1]

24.

ANALYTICAL TREE. Graphical representation of an accident in a deductive approach

(general to specific). The structure resembles a tree - that is, narrow at the top with a single

event (accident), then branching out as the tree is developed, and identifying root causes at the

bottom branches. [DOE G 225.1A-1]

25.

ANNUAL LIMIT ON INTAKE (ALI). The derived limit for the amount of radioactive

material taken into the body of an adult worker by inhalation or ingestion in a year. ALI is the

smaller value of intake of a given radionuclide in a year by the reference man (ICRP Publication

23) that would result in a committed effective dose equivalent of 5 rems (0.05 sievert) or a

committed dose equivalent of 50 rems (0.5 sievert) to any individual organ or tissue. ALI values

for intake by ingestion and inhalation of selected radionuclides are based on Table 1 of the U.S.

Environmental Protection Agency's Federal Guidance Report No. 11, Limiting Values of

Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation,

Submersion, and Ingestion, published September 1988. This document is available from the

National Technical Information Service, Springfield, VA. [10 CFR 835.2]

26.

ANTICIPATED OPERATIONAL OCCURRENCE OR EVENT. An abnormal event that is

expected to occur during the lifetime of the facility (e.g., small radioactive materials spills, small

fires). [DOE O 5480.30] [EH62dd1]

27.

APPOINTING OFFICIAL. A designated authority responsible for assigning Accident

Investigation Board Type A and Type B investigations, with responsibilities as prescribed in

Paragraph 5d of DOE O 225.1A. [DOE O 225.1A] [DOE G 225.1A-1]

28.

ARC-FLASH HAZARD. A dangerous condition associated with the release of energy caused

by an electric arc. [IEEE 1584-2002]

29.

ARC RATING. The maximum incident energy resistance demonstrated by a material (or a

layered system of materials) prior to breakopen or at the onset of a second-degree skin burn.

Arc rating is normally expressed in cal/cm2. [NFPA 70E]